Furnace



Jan. 17, I928.

, 1,656,299 J. SPOUSTA FURNACE Filed Dec. 28. 1925 2 Sheets-Sheet 1 ATTORNEY.

Patented Jan. 17, 1928."

* UNITED: STATES PATENT OFFICE.

JOHN srousm, or RIVER Rotten, mIcHiqAn.

FURNACE a Application fil ed December 28,1925. Serial No. 77336.1

My invention relates to a new and useful improvement in a furnace of the steam or ture and highly e'llicicnt in use.

Another object of the lnvention .is the provision of a boiler of thisclass, con

struct'ed from a plurality of interchange able sections, so that the boiler may be constructed of any desired number of sections and thus its capacity regulated.

Other objects of the invention will appear as the description proceeds, these ob jects relating to the special type of sections and construction generally.

The invention consists in the combination and arrangement of parts hereinafter described and claimed.

The invention will be best understood from a reference to the accompanying drawings, which forin a part of this'specification and in which,

Fig. 1 is a side 'elevational View of the in vention, a V

Fig. 2 is a sectional view taken on. substantially line 22 of Fig.4, Fig. 3 is a sectional view taken on substantially line 3- 3 of Fig. 4,

Fig. 4 is a vertical central sectional view of the invention, j

5 is a fragmentary sectional yiew taken on substantially line 5-5 of l,

Fig. 6 is a fragmentary sectional view taken on substantially line 6 6 ofFig. 3,

Fi 7 is a fragmentary view taken on;

substantially line 77 of Fig. 4. j g

As 'hown intlie drawings,the invention comprises abase 15, upon which is adapted for mounting the lowermost section 16 having a Water compartment 17 therein, with which communicates an inlet port 18 and a return port 19, the base 15 having aflange 2 0 forengaging the periphery of the section 16.

The section 16 is provided, at its upper edge, with an outwardly projecting bead or flange 21, which is adapted to engage the periph- -the'bolt 32 therebetween.

ery at the lower ed 'e of the section 22,

whichv is fori'ned with a. chamber 23 and provided, at its upper end, with an outward ly projecting head or flange 2 L Mounted on the section 22 is a similar section 22 having the chamber 23, and the flange 24. It will be noted that the section 22 is a duplicate of the section 22, any desired numberof these sections being used, depending upon the capacity of the boiler desired to be constructed. Mounted on the upper section 22 is an arcuate do1ne25 having a chamber 26 formed therein. The upper wall 29 of the section 16 is provided with a plurality of openings 29 which register with openings formed in the base 28' of the sectiono22, so

as to establish communication between chain-:

bers 17 and 23. Similar openings'27 are formed in the upper wall 28 of the section 22 and communicate with openings formed in the base of the section above. The base of the dome is also provided withopenings for establishing this communication, so that the chambers 17, 23, 23 and26 are all in communication with each other.

Projecting inwardly in the chamber 17 from the inner surface of the side walls thereof are bosses and 31, which are spaced apart sulhciently to permit the pass sage of a bolt head 33, which is mounted bn hen the bolt head 33 is passed between the bosses 31 and 30, sons to be positioned below the same, the head 33 may then be turned to en' gage the undersurfaces of the bosses 31 and 30, the head 33 beng formed preferably rectangular, and of less width than its length, topermit this arrangement. The retaining bolts32 are projected through the registering openings formed in adjacent top walls and bottom walls of ad acent sections and project through the dome, as clearly seen in the drawings. A nut 3a is threaded on the bolts 32.'so that these bolts serve to retain the various sections in properly mounted position. The chamber 17 communicates throughthe inwardly projecting conduits .35, 36, 37 and 38 with a centrally disposed cup-shaped member 39, projecting upwardly from which is a flange l0. Positioned over this cup-shaped member 39, concentrically thereof, is an annular member 41 having a chamber 41 therein. The chamber 41 communicates through the inwardly projecting conduits 4:2 with the centrally disposed cylindrical container 43, which is open at both ends. The interior of this container 43 is of the same diameter as the diameter of the flange ll). Projecting upwardly from the section ll, around the annular portion 48, is a flange 416. As shown in Fig. 4, a flange projects inwardly of the conduits l2 and a cylindrical sleeve 4% is pressed into the cvlindrical flange d0 and the flan e a l so .i e. b 7

cup-shaped member .39 is a metal rib 50.

preferably cast integral with the cup-shaped member 39, said member being provided with a centrally positioned opening in registration with an opening termed in the spider 51, which is mounted on the dome 25 in the chamber 26. Projected through these open ings is a bolt provided with a nut 52, upon the threading of which the sections are bound tightly together. An outlet 53 is formed in the dome to which suitable piping may be attached for conducting the steam or hot water from the dome. Formed in the dome 25 and communicating with the space surrounded by the sections 16, 22 and 22 is a flue opening 55 over which may be mounted suitable piping.

In the form shown in Fig. 4, the invention is constructed for use with an oil burner. It is evdent, however, that if desired any form of fuel may be used, the grates being suitably supported within the section 16. adjacent the lower end thereof. The specific mounting of the grating is a detail of structure which forms no part of the present invention. and consequently, is not shown.

It is believed evident from the description that the water or steam, whenpassing from the chamber 17, into the chamber 41 of the sections 41, will be subjected to the hot gases arising from the fire box and the steam or water heated to a higher temperature than is the water in the chambers 17, 23 and 23. The interchangeability oi. the parts is also believed apparent, as well as the durable and compact structure which is provided.

With such a structure, the boiler and its various parts may be formed entirely from castings which are easily assembled in operative position and in which a minimum number of machined parts is used.

\Vhile I have illustrated and described'the preferred form of structure, I do not wish to limit myself to the precise form of structure shown, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A iurnace of the class described comprising a plurality of superimposed sections cachet said sections being formed substantially cylindrical and double walled to provide a chamber, the ends of said chamber in each oi said sections being closed and the chambers in adjacent sections communicat ing through aligning openings formed in the end closures; a dome mounted on the uppermost of said sections having'a chamber connnunicating with the chamber of the section below it; and stay rods projected through said aligning openings for binding said dome and said sections in co-operative relation; a plurality of double walled superin'iposed d ruins positioned within said assent bled sections having their periphery spaced slightly from the inner surface of said sections, each of said drums with chamber extending around the inner surface of the outer walls; a plurality of conduit means for communicating said chamber in said drum with said central passage and means for communicating the central passage oi the lowermost of said drums with the chamber of the lowermost of said sections, the centralpassage of each of said drums being in communication with each other and with an outlet port formed in said dome.

2 1k furnace of the class described comprising a plurality of superimposedsections each of said sections being lormed substantially cylindrical and double walled to provide a chamber, the ends of said chamber in each of said sections being closed and the chambers in adjacent sections communicating through aligning openings formed in the end closures; a dome mounted on the uppermost of said sections having a chamber communicating with the chamber of the section below it; and stay rods projected through said aligning openings for binding said dome and said sections in co-operative relation; a plurality of double walled superimposed drums positioned within said assembled sectlons having their periphery spaced slightly from the inner surface of said sections, each of said drums being provided with a central cylindrical passage and a chamber extending around the inner surface of the outer walls; a plurality of conduit means for'communieating said chamber in said drum with said central passage; means for communicating the central passage of the lowermost of said drums with the chamber of the lowermost of said sections, the central passage of each of said drums being in communication with being provided. a central cylindrical passage and a Ill) each other and with an outlet port formed in said dome, and means projected through said central passage for binding said sections and said drums in co-operative relation.

3. A furnace of the class described comprising a plurality of superimposed sections, each of said sections being double walled to i provide a chamber; walls on each of said sections for closing said chambers, the chambers of adjacent sections being in communication with each other through aligning openings formed in said end walls; an inverted cupshaped member mounted axially of the lowermost of said sections; conduit means for communicating said cup-shaped member with the chamber of said section; a plurality of drums mounted in said sections in superimposed relatlon, each 0t said drums being provided with a central passage 1n communication with said cup-shaped member and each of said drums belng double walled to tions in. assembled relation; stay rods pro-- jected through the aligning openings of said sections for binding said sections in co-opera-v tive relation.

4. A iturnace of the'class described comprising a plurality of superimposed sections,

each of said sections being double walled to provide a chamber; walls on each end of said sections for closing said chambers, the chambers of adjacent sections being in communication with each'other through aligning openings formed in said end walls; an

inverted cup-shaped member mounted axially of the lowermost of said sections; conduit means for communicating sald cup-shaped member with the chamber of said section; a

plurality of drums mounted in said sections in superimposed relation, each of said drums being provided with a central passage in communication with said cupshaped member and each of said drums being double walled to provide a chamber: means for communication from said chambers of said drums to said central passage; a rib mounted insaid cup-shaped member; a dome mounted on theuppermost of said sections, said dome having a peripheral chamber in communication with the chambers of said sections and provided wtih an outlet opening communicating with said central passages; a spider on said dome; a stay rod connectingsaid spider and said rib for retaining said drums and said sections in assembled relation; stay rods projected through the aligning openings of said sections for binding said sections in co-operative relation; a sleeve for eli'ecting a water tight connection between said cup-shaped member and the central passage of the lowermost of said drums; a sleeve tor effecting a water tight connection between the central passage of adjacent drums; and a sleeve for efiecting a water tight connection between the outlet opening of said dome and the central passage .of the uppermost ofsaid drums.

' 5(A furnace of the class described comprising a plurality of superin'iposed sections,

'each of said sections being double walled to provide a chamber; a plurality of double walled superimposed drums positioned within said assenibled'sections, having their peripheries spaced slightly from the inner sur face of said sections, each of said drums beprovided with a central cylindrical pas- 3 sage, and a chamber extending around the inner surface of the outer walls of said drums; a plurality of conduit means for con necting said chambers in said drums in communication with said central passage; and means for connecting the central passage of the lowermost of said drums to the chambers of the lowermost of said sections, the

chambers in said sections being in communication with each other, the central passages of said drums being in communicationwith eachother and with an outlet port.

In testimony whereof, I have signed the foregoing.

JOHN SPOUSTA. 

